Physics, 31.07.2019 03:30 bellamparker
Astudent is skateboarding down a ramp that is 8.51 m long and inclined at 23.7° with respect to the horizontal. the initial speed of the skateboarder at the top of the ramp is 4.97 m/s. neglect friction and find the speed at the bottom of the ramp.
Answers: 3
Physics, 21.06.2019 22:30
Aforce of 200 n is applied to an input piston of cross-sectional area 2 sq. cm pushing it downward 2.8 cm. how far does the output piston of cross-sectional area 12 sq. cm move upward? show all work.
Answers: 1
Physics, 22.06.2019 02:10
Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.
Answers: 3
Physics, 22.06.2019 16:00
Which composition of water moves to begin a deepwater current?
Answers: 2
Astudent is skateboarding down a ramp that is 8.51 m long and inclined at 23.7° with respect to the...
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